Chalcedony from Mid-Atlantic Ridge complex, Atlantic Ocean
Atlantic Ocean | |
| Petersen, S., Herzig, P.M., and Hannington, M.D. (2000): Mineralium Deposita 35, 233-259. |
Iceland | |
| Betz, Volker (1981) Famous mineral localities: Zeolites from Iceland and the Faeroes. The Mineralogical Record, 12 (1) 5-26 |
| self collected by Jamison Turnbull |
| Tamjidi, A. Borehole geology and hydrotermal alteration of well KJ-29 in the Krafla high-temperature area, NE-Iceland. United Nations University. |